[PATCH 01/10] ARM: change ARM_DMA_ZONE_SIZE into a variable

[Nicolas Pitre]

On Wed, 6 Jul 2011, Barry Song wrote:

> 2011/7/6 Nicolas Pitre <nicolas.pitre at linaro.org>:
> > Having this value defined at compile time prevents multiple machines with
> > conflicting definitions to coexist.  Move it to a variable in preparation
> > for having a per machine value selected at run time.  This is relevant
> > only when CONFIG_ZONE_DMA is selected.
> >
> > Signed-off-by: Nicolas Pitre <nicolas.pitre at linaro.org>
> 
> that is definitely good. i am not sure whether it will be better if
> dma zone becomes a property in memory node of DT.

Certainly.  But one thing at a time.  This is the first step. Then, 
those machines that are converted to DT could more easily provide the 
information via this mechanism if they so desire.


Nicolas